CrapoRO, MorrisAH, GardnerRM. Reference spirometric values using techniques and equipment that meet ATS recommendations. Am Rev Respir Dis1981;123(6):659–664.
2.
Mier-JedrzejowicaA, BrophyC, MoxhamJ, GreenM.Assessment of diaphragm weakness. Am Rev Respir Dis1988;137(4): 877–883.
3.
GibsonGJ, PrideNB, DavisJN, LohLC. Pulmonary mechanics in patients with respiratory muscle weaknessAm Rev Respir Dis1977;115(3):389–395.
4.
HurtadoA, FrayWW. Studies on total pulmonary capacity. J Clin Invest1933;12:825–832.
5.
WadeOL, GibsonJC. The effect of posture on diaphragmatic movement and vital capacity in normal subjects with a note on spirometry as an aid in determining radiological lung volumes. Thorax1951;6:103–126.
6.
AllenS, HuntB, GreenM.Fall in vital capacity with postureBr J Dis Chest1985;79(3):267–271.
7.
Newsom-DavisJ.The diaphragm and neuromuscular diseaseAm Rev Respir Dis1979;119(2 Pt 2):115–117.
